Seam for sewed articles.



s. c. ms; SEAMFOR SEW'ED ARTICLES.

APPLICATION min JULY 23.1911.

Patented July 2, 1918.

r/ yr ILA wucnloz I W S. G. TATE.

SEAM FOR SEWED ARTICLES.

APPLICATION FILED JULY 23. WW.

1,271,240. Patented 2,1918.

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y S.G.TATE SEAM FOR SEWEI) ARTICLES. A APPLICATION FILED JULY 23. 19!]. 1,271,240. Patented July 2,1918.

3 SHEETS-SHEET 3.

M 521mm UNITED STATES PATENT curios.

A SAMUEL GEORGE TATE, OF CHICAGO, ILLINOIS, ASSIGNOR'TO UNIONSPECIAL MACHIN COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SEAM FOR SEWED ARTICLES.

To all whom it may concern:

Be it known that I, SAMUEL GEORGE TATE a citizen of the United States, residing at Chicago, in the county of Cook, State of Illinois-have invented certain new and useful Improvements in Seams for Sewed Articles, of which the followin is a description, reference being had to t e accompanying drawing, and to the figures of'reference marked thereon. The invention relates to new and useful improvements in seams for sewed articles,

slightly modified and more particularly to a covering seam or seam which may be used for uniting and covering the meeting edges of two sections of fabric.

An ob ect of the 1nvent1on-1s to provide a seam having a plurality of rows of con-.

nected lines of stitching wherein one of the rows of stitching includes thread loops which are locked against raveling, which line of stitching also serves to lock the loops in the other line or lines of stitching against raveling.

A further object of the invention is to provide a seam of the above character wherein the edges of the fabric sections are abutted, the needle loops of one of the rows of stitching passing downwardly between the abutted edges, and wherein theneedle thread of said row is supported by a cover ing thread passing twice across the abutted edges between each loops in said thread.

These and other objects will in part be obvious, and will-in part be hereinafter more fully disclosed. I

In the drawings, 1 Figure 1 is a top plan view on an enlarged scale, showing. two fabric sections united by my improved seam;

Fig. 2 is a bottom plan view of the same; Fig. 3 is a top fplan view, but showing a orm of the invention;

Fig. 4 is a bottom'plan view of the same shown in Fig. 3; N

Fig. 5 is a top plan view similar to Fig. 1, but showing a slightly modified form of Fig. 6 is a bottom plan view of the seam shown in Fig. 5. p

The invention consists in a seam for joining fabric sections preferably having their meeting edges abutted or very slightly overpair of needle thread Patented J uly 2, 1918.

Application filed July 23, 1917. Serial No. 182,262.

while the needle thread loops in this last named row' are locked by the looper thread loops which pass through the needle thread loops and are secured by the next formed needle thread loops in the same row.

Referring more in detail to the drawings, the seam shown in Figs. 1 and 2 is a threeneedle seam in which the needles operate to produce three parallel rows of needle-thread loops. The three needle threads are indicated at 1, 2 and 3 respectively. The needle .loops ofthese needle threads are also indicated respectively at 4, 5 and 6. The fabric sections are indicated at F and F. The meeting edges of the fabric sections are indicated at f. The needle threads land 3 are formed into parallel rows of loops which extend respectively downwardly through the fabric sections F and F adjacent the meeting edges thereof. A needle thread 2 is formed into a row of loops which pass downwardly between the abutted edges of the fabric sections. A covering thread 7 is passed around each needle loop in the outer rows and twice underneath the needle thread in the center row between each'ade jacent pair of needle thread loops 5.

This covering thread forms'a. support for the-center needle thread, the loops of which do not penetrate the fabric sectlons, but which pass between the abutted edges of the fabric sections. Inasmuch as the covering thread passes twice across the abutted edges and in spaced relation to each other, the needle thread 2 is thereby given a two-pomt support by this covering thread between adjacent needle thread loops of the needle thread 5.

The. needle thread loops on the lower surface of the fabric are secured .by two looper threads. ried by a looper moving transversely of the line of feed and entering the needle thread loops of two'of the rows, that is, the needle .thread loops 5 and 6. The other looper thread is carried by a single looper and locks One of the looper threads is carnot only the first mentioned looper but'forms with the third row of needle thread loops, (that is, the needle thread loops 4) the ordinary two-thread double locked stitch.

The loops in the first mentioned looper thread, which are indicated at 8 in the drawings, are entered by the needle thread loops 4 and thus the locking of the needle thread loops 4 by the looper thread 9 brings about a locking of the loops 8 and consequently a locking of the needle loops in the other rows and thus a locking of all of the concatenated loops, resulting in the formation of a seam having stitches which will not ravel when the seam is placed under strain. One strand of each loop 8 in the looper thread is also carried laterally and'in the direction of the feed, so as to be entered by the next two needle thread loops 5 and 6.

It will be noted that the needle thread loops in the needle thread 1 are slightly out of line with the needle thread loops 5 and 6, as'shown in the drawings. This, however, is immaterial so far as the seam per se is concerned, the essentialfeature consisting in the connected rows of stitches, wherein one line of stitching includes loops which are locked against raveling, which loops in turn serve to prevent the thread 100 s in the other rows of stitches from ravehng when the fabric sections are placed under strain.

In Figs. 3 and 4 of the drawings, I have shown a slightly modified form of the invention, in that there are four rows of needle thread loops indicated at 12, 13, 14: and 15. A covering thread 7 joins all four rows of needle thread loops extending around the needle thread loops in the outer rows and underneath the threads in the intermediate rows. A looper thread 16 is formed into thread loops which are passed through the needle thread loops 13, 14 and 15 and secured by the needle thread loop 12. A looper thread 17 forms a two-thread double locked stitch with the needle thread loops '12 in the manner described in connection with Figs. 1 and 2. Except as to the number of rows of threads and the position of the thread relative to the meeting edges, the thread concatenations shown in these figures are precisely the same as that shown in Figs. 1 and 2.

In Figs. 5 and 6 I have shown a further modification of the invention which consists of two rows only of needle thread loops, the

loops are entered by the next needle loops formed in the same needle thread and the looper thread loops are also extended laterally across the meeting edges of the fabric sections and are entered and secured by the needle thread loops in the other needle thread. A looper thread 23 is formed into a series of loops which are passed through the needle thread loops 20 and these looper thread loops are secured by the same needle thread loops forming the well known two thread double locked stitch. This two thread double locked stitch will not ravel and as the looper thread of the other of stitches is locked thereby any strain on the fabric sections will not cause the stitches to ravel. A covering thread. 7 described in connection with Figs. 1 and 2 is used. I

From the above it will be apparent that .I have provided a seam which is preferably used in joining the abutted edges of knitted fabric sections, which seam is very strong and which very efliciently covers the'ends of the threads of the fabric sections. Furthermore, the stitches of my improved seam will not ravel when the fabric sections are placed under'strain, as one of the lines of stitching in each instance includes locked stitches and these locked stitches serve to lock the other thread loops which are concatepated either directly or indirectly therewit While I have described the invention as applied to fabric sections having their edges abutted, it is obvious that the seam from certain aspects of the invention may be used in other relations.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a seam, the combination with fabric sections having meeting edges, of two parallel rows of needle thread loops respectively extending downwardly through the fabric sections adjacent the meeting edges thereof, the needle thread loops of one row being staggered relative to the needle thread loops of the other row, a looper thread having loops extending through the needle thread loops in one of said rows, said looper thread loops being extended laterally across the meeting edges of the fabric sections and secured by the needle thread loops in the other row and a looper thread formed into loops concatenated with said last named row of needle thread loops to form therewith locked stitches.

2. In a seam, the combination with fabric sections having meeting edges, of two parallel rows of needle thread loops respectively extending downwardly through the fabric sections adjacent the meeting edgesthereof, the needle thread loops of one row being staggered relatively to the needle thread loops of the other row, a looper thread havmg loops extending through the needle thread loops in one of said rows, said looper thread loops being extended laterally across the meeting edges of the fabric sections and secured by. the needle thread loops in the other row, and a looper thread formed into loops concatenated with said last named row of needle thread loops to form therewith locked stitches, and a covering thread for connecting the needle threads on the upper face of the fabric. i

3. In a seam, the combination of two parallel rows of needle thread loops respectively extending downwardly through the fabric sections adjacent the meetingedges thereof, another'row of needle thread loops arranged intermediate and parallel with said first mentioned rows and extending downwardly between the fabric sections,

a looper thread looped through all the needle thread loops of two of said rows and around the needle thread loops of the other rows, a

second looper thread locking the needle thread loops of said other or remaining row and the loops of said first mentioned looper thread, and a single covering thread looped around each of the needle thread loops of the first mentioned rows on the upper face of the fabric and forming a two-point support for the needle thread of the intermediate row between adjacent needle thread loopsthereof.

4. In a seam, the combinationwith fabric sections having their meeting edges abutted, parallel rows of needle thread loops, a looper thread formed in the loops which arepassed through the needle thread loops of all the rows but one and concatenated with the needle thread loops in the remaining row,

and a looper thread having loops concatenated with the needle thread loops only in' said remainlng row, said last mentioned looper thread and needle thread loops cowith fabricsectionshavmg their meeting edges abutted,

operating to lock the first mentioned looper thread.

5. In a seam, the combination with fabric sections having their meetlng edges abutted,

parallel rows of needle thread loops, a looper face of the fabric.

6. In a seam, the combination with fabric sections having their meeting edges abutted,

of twoparallel rows of needle thread loops respectively extending downwardlv through the fabric sections adjacent the meetlng thread, and a covering thread connecting the outer rows of needle threads on the upper edges thereof, another row of needle thread loops arranged intermediate and parallel with said first mentioned rows and extending downwardly between the fabric sections,

means for securing all of said needle thread loops, and a single covering thread looped around each of the needle thread loops of the first mentioned rows on the upper face of the fabric and forming a two-point support'for the needle thread of the intermediate row between adjacent needle thread loops thereof. 0 v

In testimony whereof, I afix my slgnature in the presence of two witnesses.

' I SAMUEL'G-EORGE TATE. Witnesses: I

A.'D. GILG N, J. H. MAsmno. 

